CN105852891A - Detector apparatus for a computed tomography system - Google Patents
Detector apparatus for a computed tomography system Download PDFInfo
- Publication number
- CN105852891A CN105852891A CN201610068997.3A CN201610068997A CN105852891A CN 105852891 A CN105852891 A CN 105852891A CN 201610068997 A CN201610068997 A CN 201610068997A CN 105852891 A CN105852891 A CN 105852891A
- Authority
- CN
- China
- Prior art keywords
- voltage
- detector
- detector assembly
- changer
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4266—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a plurality of detector units
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/17—Circuit arrangements not adapted to a particular type of detector
- G01T1/175—Power supply circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/64—Circuit arrangements for X-ray apparatus incorporating image intensifiers
Abstract
The invention relates to a detector apparatus for a computed tomography system. The detector apparatus includes one or a number of detectors for assigned radiation sources of a computed tomography system, wherein each detector may require a constant input voltage in a range between 900 V and 1200 V. During operation of the detector apparatus, an auxiliary voltage is fed to a high voltage source to supply power to the input terminals on the number of detectors. The high voltage source includes a central first DC-DC converter, to which the auxiliary voltage is fed, and a number of second DC-DC converters arranged downstream of the first DC-DC converter. The first and the second DC-DC converter are based on different power supply topologies, wherein each second DC-DC converter generates the constant input voltage in the predetermined range from a central output voltage provided by the first DC-DC converter and supplies the constant input voltage to a corresponding detector.
Description
Technical field
The present invention relates to a kind of detector assembly, there is corresponding the penetrating for computer tomograph
One or more detectors of line source and for the high-voltage power supply powered to one or more detectors.
Background technology
Corresponding radiogenic detector for computer tomograph hits each to count
The light quantum of detector plane needs the high pressure in the scope of several hectovolts.To this end, each detector by
High-tension cable is connected to high-voltage power supply.Computer tomograph generally includes multiple detector, thus counts
It is high that laying in calculation machine fault angiography device spends.
Different from the detector used so far, new-type detector based on cadmium telluride sensor is according to incident
Light quantum be not to this optical quantum counter but to change its resistance.Thus draw following advantage, i.e. no
Need the intermediate steps carrying out for converting light to the signal of telecommunication, thus at image taking or image procossing
In the case of can realize bigger accuracy.Following problem is drawn, i.e. to respectively by measuring resistance variations
The supply voltage that individual detector provides is almost glitch-free and must extremely accurately regulate.This requirement
The high-voltage power supply being consequently not used for common detector is met.Additionally, carry to sensor based on cadmium telluride
For the voltage of the most higher scope between 900V and 1200V compared with common detector.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to provide a kind of detector assembly, and it allows to guarantee
Sum that provide the lowest interference voltage to one or more detectors of detector assembly, that can accurately regulate
It is not dependent on the power supply of load.
Above-mentioned technical problem is solved by the detector assembly according to the present invention.Preferred embodiment by
Dependent claims is given.
A kind of detector assembly of suggestion, it includes the corresponding radiographic source for computer tomograph
One or more detectors and for the high-voltage power supply powered to one or more detectors.One or many
Individual detector is configured to so that each detector needs predetermined level when it runs, and particularly exists
In the range of between 900V and 1200V, constant input voltage.High-voltage power supply is transported at detector assembly
Being carried boost voltage at its input terminal during row, wherein high-voltage power supply includes being carried the central authorities of boost voltage
The first dc voltage changer, with at the first dc voltage changer latter linked one or more second
Dc voltage changer.First and second dc voltage changers are based on different power supply techniques, namely
Different transducer type.Second dc voltage changer provides input voltage to detector respectively.Each
The second dc voltage changer provide from the first dc voltage changer, central authorities output voltage produce
The input voltage of raw predetermined level.
Thus, high-voltage power supply includes two that be connected in series, different dc voltage changers, the most permissible
On the one hand low interference and the voltage that on the other hand can accurately regulate is provided to one or more detectors.Especially
Ground, it is provided that a kind of detector assembly, wherein can carry for one or more detectors with high precision
For high output voltage, particularly in the range of 900V to 1200V.
Owing to high-voltage power supply includes first dc voltage changer and corresponding with the quantity of detector of central authorities
Quantity at latter linked second dc voltage changer, it is only necessary to unique high pressure connects, such as, construct
For cable, power with the first dc voltage changer to central authorities.Thus, at the first direct current of central authorities
Pressure converter and multiple connection between latter linked second dc voltage changer can be with simpler
Mode, such as realize under conditions of corresponding wire string structure (Leiterzugstruktur) using.
The high-voltage power supply with volume the least compared with common high-voltage power supply thus can be provided.
According to suitable embodiment, the first dc voltage changer is configured to resonance converter, and it will
Boost voltage brings up to output voltage, and this output voltage is higher than the predetermined level of one or more detectors
Input voltage.Especially, the first dc voltage changer is configured to the alternating current of boost voltage
The amplitude reduction of pressure component is to relatively small level.
The first dc voltage changer using central authorities it is possible to realize superposition in image taking
The intermediate circuit voltage of the alternating current voltage component negatively affecting detector is reduced to less level.This is special
Not the smoothing capacity device by arranging in resonance converter causes.
In other embodiments, one or more second dc voltage changers are linear regulators,
Output voltages that provided by the first dc voltage changer, central authorities are reduced to by one or more spies by it
Survey the output voltage needed for device.One or more second dc voltage changers are in particularly constructed as at this
The amplitude of the alternating current voltage component of the output voltage of the central authorities of the first dc voltage changer is fallen for regulation.
Regulation fall be understood to eliminate to a level, this level in measurement technology can not or only with significant amount of overhead
Just can detect.Thus can provide input voltage to one or more detectors, it is not only at its level
On can extremely accurately regulate, and the most no longer there is alternating current voltage component.The most permissible
Have benefited from such detector, its principle based on resistance measurement.But such detection can also be improved
The signal quality of device, it counts the light quantum hitting detector in known manner.
Obtaining boost voltage by the device for PFC in an appropriate manner, this is used for power
The device of factor correcting is configured to, and produces boost voltage from single-phase grid ac voltage.For power because of
It is known that the device of number correction also serves as Power-Factor-Correction-Curcuit (PFC).Such
Device is in the upper work of single-phase alternating current voltage electric grid (the most such as 230V electrical network), wherein for power
The output voltage of the device of factor correcting is DC voltage, and it is more than the peak value of alternating voltage.For power
The value of the output voltage of the device of factor correcting e.g. 380VDC and represent boost voltage or centre
Circuit voltage.Based on single-phase AC voltage (namely for the input voltage of device of PFC)
From inconstant instantaneous power, boost voltage or intermediate circuit voltage superposition have about 10 to
The alternating current voltage component of the 100Hz of 20VAC amplitude (when the frequency of grid ac voltage is 50Hz,
Otherwise provide different values).Should be referred to as ripple voltage alternating current voltage component when image taking negatively
Affect sensor.This defect can be eliminated by high-voltage power supply described above.
The boost voltage of homophase is more than the peak value of alternating voltage.
In other embodiments, the device for PFC connects with high-voltage power supply via cable
Connect.In more detail, turn with the first DC voltage of the central authorities of high-voltage power supply for the device of PFC
Parallel operation connects.
On the contrary, can be by one or more second dc voltage changers and one or more detector arrangement
On common circuit board.This common circuit board is referred to as so-called motherboard.Can be second straight by each
Flow electric pressure converter and each detector as module arrangement on corresponding individually circuit board, Qi Zhongran
After module is connected with common circuit board.
First dc voltage changer can also be arranged on common circuit board alternatively.
In other embodiments, the first dc voltage changer and one or more second DC voltage
Converter can be connected to each other by the wire string structure arranged on common circuit board.By this structure
Need not by respective high-tension cable to detector provide needed for input voltage, thus in accordance with the present invention
Detector assembly relate to the volume less relative to common detector assembly.
According to preferred embodiment, one or more detectors include cadmium telluride sensor, and it is such as beginning
As description, need the input voltage of high precision, in order to spy can be hit by resistance variations measurement
Survey the light quantum of device.
Accompanying drawing explanation
Below against the embodiment in accompanying drawing, the present invention is further illustrated.
In accompanying drawing:
Fig. 1 shows showing of the detector assembly according to the present invention for computer tomograph
It is intended to, only one detector is the most only shown；With
Fig. 2 show for computer tomograph have n individually detector according to this
The schematic diagram of the detector assembly of invention.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the detector assembly 1 according to the present invention.For the sake of simplicity at Fig. 1
In illustrate only single detector 2, its by high-voltage power supply 10 with the constant input voltage of predetermined level
UDetPower supply.Preferably, detector is cadmium telluride sensor, and it needs between 900V and 1200V
In the range of input voltage.Thus send out by the radiographic source (not shown) corresponding with detector 2 in incidence
In the case of the x-ray quantum penetrated, can be with the resistance variations of sensitive detector, it is desirable that, to spy
Survey the input voltage U that device 2 providesDetAlmost without interference voltage, can the most accurately regulate and do not take
Certainly in load.This requirement is met by high-voltage power supply 10 described below.
In order to power to detector 2, high-voltage power supply 10 includes the first dc voltage changer 11 of central authorities
And at latter linked second dc voltage changer 12 of the first dc voltage changer 11.High-voltage power supply 10
Or the first dc voltage changer 11 of its central authorities is by for PFC (also referred to as
Power-Factor-Correction-Circuit, PFC) device 3 power.For PFC
Device 3 be connected with AC power 4 in itself.
AC power 4 provides single-phase AC voltage UNetz, such as at 50Hz, there is 220V voltage, its
DC voltage U is converted to by the device 3 for PFCZK.Intermediate circuit voltage UZKHave
Peak value more than the grid ac voltage according to 220V level.Generally, the value of intermediate circuit voltage is
UZK=380VDC=UZK,DC.Single-phase AC voltage based on AC power 4 from inconstant instantaneous merit
Rate, intermediate circuit voltage UZKSuperposition has the 100Hz of about 10 to 20VAC amplitude in this example
Alternating current voltage component UZK,AC.Thus, intermediate circuit voltage UZKBy UZK,DCWith UZK,ACAnd group
Become.100Hz ripple voltage negatively affects detector 2 when image taking.
Be embodied as resonance converter, carried with intermediate circuit voltage U of 100Hz ripple superimposedZK
The first dc voltage changer 11 intermediate circuit voltage is arranged horizontal U1,OUT, wherein voltage water
Flat U1,OUTInput voltage U needed for being in about detector 2DetAbove.It is also known that resonance
Converter has internal voltage regulator, and it is connected with smoothing capacity device and is reduced to quite by 100Hz ripple
Little level, about 1 to 2V.It is somebody's turn to do and U1,OUTDC voltage component U1,DCThe alternating voltage of superposition
Component is with U1,ACRepresent.Thus by DC voltage component U1,DCWith alternating current voltage component U1,ACComposition
Output voltage U1,OUTIt is transported at latter linked second dc voltage changer 12.
From there through the first dc voltage changer 11 by the input direct voltage U of level 380VZKCarry
The high output DC voltage to the level between 900V and 1200V.Output DC voltage, its also by
It is referred to as the output voltage U of central authorities1,OUT, depend on the actually required input voltage U of detector 2Det。
The first dc voltage changer 11 being embodied as resonance converter has following feature, produces at its environment
In the least interference.
Second dc voltage changer 12 is implemented as linear regulator and by the output of resonance converter
Voltage U1,OUTInput voltage U needed for being reduced to by detector 2DetLevel.Here, linear regulation
Device regulates fall 100Hz ripple voltage, namely alternating current voltage component U the most completely1,AC.Straight by second
The output voltage U that stream electric pressure converter 12 provides2,OUTThe most only include DC voltage component U2,DC, and
Alternating current voltage component U2,ACIt is no longer able to be measured by common measure.Therefore, it carrys out table with dotted line
Show.
It is thereby configured to linear regulator at latter linked second dc voltage changer 12.It will be by
It is configured to the output voltage U that the first dc voltage changer 11 of resonance converter produces1,OUTIt is reduced to
By the voltage levvl U needed for detector 22,OUT=UDet.Run by its non-clock, linear regulation
Device does not produce the interference in its environment and on detector to be powered.
And the general principle of high-voltage power supply is only shown according to Fig. 1, Fig. 2 shows have quantity n detector
2-1 ..., the detector assembly of 2-n.Detector 2-1 ..., each in 2-n and second direct current
Pressure converter 12-1 ..., 12-n is associated.Second dc voltage changer 12-1 ..., 12-n respectively with
The out splice going splice of the first dc voltage changer 11 of central authorities connects.The first DC voltage in central authorities turns
Parallel operation 11 and n the second dc voltage changer 12-1 ..., the electrical connections between 12-n is as by leading
Line string structure realizes.Wire string structure 14 may be constructed such that bus structures.
Here, wire string structure the 14, first dc voltage changer the 11, second dc voltage changer
12-1 ..., 12-n and n detector 2-1 ..., 2-n may be on common circuit board 13, so-called
Motherboard on.Detector 2-1 ..., 2-n and the second dc voltage changer 12-1 ..., 12-n can be
Construct on respective module board, the most then modules circuit board and common circuit board 13 electricity
Ground and mechanically connected.At the first dc voltage changer 11 with for the device 3 of PFC
Between connection can be carried out by unique high-tension cable 5.
Can use by known in the art, arbitrary pfc circuit as PFC
Device 3.Such layout such as by technical literature data [1] Suo Gongkai, can be inquired aboutwww.ti.com/lit/ds/symlink/ucc28180.pdf。
The first dc voltage changer 11 being configured to resonance converter such as can be as provided at technical literature
Construct like that shown in material [2], can inquire aboutwww.ti.com/lit/ds/symlink/ucc25600.pdf.Former
Then go up it is also contemplated that other type of resonance converter, as long as it is applicable to intermediate circuit voltage UZK
Bring up to one or more detector 12-1 ..., more than the input voltage of the predetermined level of 12-n.
Such as can use DC voltage the circuit arrangement as shown in technical literature data [3]
Converter 12-1 ..., 12-n (can inquire aboutwww.fairchildsemi.com/datasheets/LM/LM7824.pdf) as linear regulator.
By according to it is proposed that detector assembly can from central authorities dc voltage changer 11 to
One or more detector 2-1 ..., 2-n provides high voltage, and turns by the second DC voltage individually
Parallel operation 12 by voltage and detector 2-1 ..., the required input voltage coupling of the predetermined level of 2-n.?
High output voltage in the range of 1kV can be distributed to one or more detector by high precision.Cause
The high pressure in the range of kV is produced, so only needing for dc voltage changers 11 the most single, central authorities
Wanting unique high-tension cable, it is by the first dc voltage changer 11 and the dress being used for PFC
Put 3 connections.At the second dc voltage changer 12-1 ..., 12-n and the first dc voltage changer 11
Between connection can be carried out by wire string structure under conditions of avoiding cable.
Detector assembly has the structure in little locational requirement and simple structure.Especially, Ke Yiwei
Detector and the second dc voltage changer provide module structure, its can together with the first dc source cloth
Put on common circuit board, on the most so-called motherboard.
Bibliography
[1]Texas Instruments,UCC28180 Programmable Frequency,Continuous
Conduction Mode(CCM),Boost Power Factor Correction(PFC)Controller,
In December, 2014
Can inquire about: www.ti.com/lit/ds/symlink/ucc28180.pdf
[2]Texas Instruments,8-Pin High-Performance Resonant Mode
Controller, in July, 2011
Can inquire about: www.ti.com/lit/ds/symlink/ucc25600.pdf
[3]Fairchild Semiconductor Corporation,LM78XX/LM78XXA
3-Terminal 1A Positive Voltage Regulator, in September, 2014
Can inquire about: www.fairchildsemi.com/datasheets/LM/LM7824.pdf
Claims (12)
1. a detector assembly (1), including
-one or more detectors (2), for the corresponding radiographic source of computer tomograph,
Wherein, each detector (2) needs predetermined level when it runs, particularly at 900V and 1200V
In the range of between, constant input voltage (UDet)；
-high-voltage power supply (10), for powering to one or more detectors (2), this high-voltage power supply is in detection
By conveying boost voltage (U on its input terminal when device device (1) runsZK), wherein said high pressure
Source (10) includes being carried boost voltage (UZK) central authorities the first dc voltage changer (11),
With at latter linked one or more second dc voltage changers of the first dc voltage changer (11)
(12), wherein, the first and second dc voltage changers (11,12) based on different power supply techniques,
Wherein, the second dc voltage changer (12) provides input voltage (U to detector (2) respectivelyDet)
And that respective second dc voltage changer (12) provides from the first dc voltage changer (11),
Output voltage (the U of central authorities1,OUTInput voltage (the U of predetermined level is produced in)Det)。
Detector assembly the most according to claim 1, wherein, described first DC voltage conversion
Device (11) is configured to resonance converter, and it is by boost voltage (UZK) bring up to output voltage (U1,OUT),
This output voltage (U1,OUT) electric higher than the input of the predetermined level of the one or more detector (2)
Pressure (UDet)。
Detector assembly the most according to claim 1 and 2, wherein, described first DC voltage
Converter (11) is configured to boost voltage (UZK) alternating current voltage component (UZK,AC)
Amplitude reduction is to relatively small level.
4. according to the detector assembly according to any one of the claims, wherein, one or
Multiple second dc voltage changers (12) are linear regulators, and it will be by the first dc voltage changer
(11) provide, the output voltage (U of central authorities1,OUT) be reduced to by the one or more detector
(2) input voltage (U needed forDet)。
5. according to the detector assembly according to any one of the claims, wherein, one or
Multiple second dc voltage changers (12) are configured to regulation and fall the first dc voltage changer
(11) output voltage (U of central authorities1,OUT) alternating current voltage component (U1,AC) amplitude.
6. according to the detector assembly according to any one of the claims, wherein, by for merit
The device (3) of rate factor correcting obtains boost voltage (UZK), this is used for the device of PFC
It is configured to, from single-phase grid ac voltage (UNetzBoost voltage (the U of homophase is produced in)ZK)。
Detector assembly the most according to claim 6, wherein, the boost voltage (U of described homophaseZK)
More than grid ac voltage (UNetz) peak value.
8. according to the detector assembly described in claim 6 or 7, wherein, described for power factor
The device (3) of correction is connected with high-voltage power supply (10) via cable.
9. according to the detector assembly according to any one of the claims, wherein, by one
Or multiple second dc voltage changers (12) and the one or more detector (2) are arranged in altogether
On same circuit board (13).
Detector assembly the most according to claim 9, wherein, described first DC voltage conversion
Device (11) is arranged on common circuit board (13).
11. according to the detector assembly described in claim 9 or 10, wherein, and described first direct current
Pressure converter (11) and the one or more the second dc voltage changer (12) are by common
The wire string structure (14) arranged on circuit board is connected to each other.
12. according to the detector assembly according to any one of the claims, wherein, one or
Multiple detectors include cadmium telluride sensor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015202320.6 | 2015-02-10 | ||
| DE102015202320.6A DE102015202320B4 (en) | 2015-02-10 | 2015-02-10 | Detector device for a computer tomograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105852891A true CN105852891A (en) | 2016-08-17 |
Family
ID=56498249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610068997.3A Pending CN105852891A (en) | 2015-02-10 | 2016-02-01 | Detector apparatus for a computed tomography system |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20160231437A1 (en) |
| CN (1) | CN105852891A (en) |
| DE (1) | DE102015202320B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114680908A (en) * | 2020-12-28 | 2022-07-01 | 西门子医疗有限公司 | X-ray detector unit with adjustable voltage source and method for operating the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016220332B3 (en) | 2016-10-18 | 2018-03-01 | Siemens Healthcare Gmbh | X-ray detector |
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| DE4344252A1 (en) | 1993-12-23 | 1995-06-29 | Siemens Ag | X=ray detecting element with high X=ray to electrical signal conversion efficiency |
| EP1661517B1 (en) | 2004-11-26 | 2019-09-11 | Toshiba Medical Systems Corporation | X-ray computed tomography scanner and x-ray detecting system |
| DE102009008702A1 (en) | 2009-02-12 | 2010-08-26 | Siemens Aktiengesellschaft | Direct converting detector element for detector of detector module for detecting X-ray radiation for computer tomography scanner, has diode made of semiconductor material whose hardness is selected from specific periods of periodic table |
| JP2014048171A (en) | 2012-08-31 | 2014-03-17 | Tele Systems:Kk | Device and method for supplying driving bias voltage to radiation detector |
| US9554489B2 (en) * | 2014-09-15 | 2017-01-24 | General Electric Company | Systems for simplifying a detector head |
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2015
- 2015-02-10 DE DE102015202320.6A patent/DE102015202320B4/en active Active
-
2016
- 2016-02-01 CN CN201610068997.3A patent/CN105852891A/en active Pending
- 2016-02-04 US US15/015,666 patent/US20160231437A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060076498A1 (en) * | 2004-10-13 | 2006-04-13 | Thomas Hilderscheid | X-ray detector device and method for producing an X-ray detector device |
| CN1860998A (en) * | 2005-03-24 | 2006-11-15 | 西门子公司 | Method and apparatus for synchronizing operation of an x-ray system and a magnetic system |
| CN2833583Y (en) * | 2005-11-09 | 2006-11-01 | 清华大学 | Digitized detector module circuit for radiation imaging system |
| US20080252146A1 (en) * | 2007-04-12 | 2008-10-16 | Asustek Computer Inc. | Controllable power supply device with step-up function |
| US20110108735A1 (en) * | 2008-06-26 | 2011-05-12 | Koninklijke Phillips Electroncis N.V. | High dynamic range x-ray detector with improved signal to noise ratio |
| US20120063174A1 (en) * | 2010-09-15 | 2012-03-15 | Fuji Electric Co., Ltd. | Power factor correct current resonance converter |
| CN102681001A (en) * | 2011-03-15 | 2012-09-19 | 西门子公司 | Method for detecting X-ray radiation and detector system with direct conversion detectors |
| US20140167194A1 (en) * | 2011-05-30 | 2014-06-19 | Shimadzu Corporation | Radiation detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114680908A (en) * | 2020-12-28 | 2022-07-01 | 西门子医疗有限公司 | X-ray detector unit with adjustable voltage source and method for operating the same |
| US11617551B2 (en) | 2020-12-28 | 2023-04-04 | Siemens Healthcare Gmbh | X-ray detector unit having at least one analysis unit and an adjustable voltage supply and method for operating an X-ray detector unit |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015202320B4 (en) | 2023-07-27 |
| DE102015202320A1 (en) | 2016-08-11 |
| US20160231437A1 (en) | 2016-08-11 |
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